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  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>逻辑非</title>
  <script type="text/javascript">
    var numa, numb, jq1;
    numa = 60;
    numb = 70;
    jq1 = !(numa < numb);
    document.write("jq1的值是:" + jq1 + "<br>")
  </script>
</head>

<body>
</body>

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